5-18. A 460-V 200-kVA 0.85-PF-leading 400-Hz four-pole Y-connected synchronous motor has negligible armature resistance and a synchronous reactance of 0.90 per unit. Ignore all losses.
(a) What is the speed of rotation of this motor?
(b) What is the output torque of this motor at the rated conditions?
(c) What is the internal generated voltage of this motor at the rated conditions?
(d) With the field current remaining at the value present in the motor in part (c), what is the maximum possible output power from the machine?
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